Conor McGregor was arrested and charged with assault and criminal mischief after crashing a pre-fight press event and leaving fighter Michael Chiesa hospitalized. The blowup happened after the UFC stripped the fighter of his lightweight belt to allow a new champ to be crowned.

Caitriona Balfe is an Irish actress and model who plays Claire Fraser in Starz's hit show 'Outlander.'

Dolores O'Riordan was the Irish lead singer of the 90s alt rock band the Cranberries.

Liam Neeson is an Irish actor known for his leading-man roles in dramas like 'Schindler's List' and action films like 'Taken.'

Irish writer Bram Stoker is best known for authoring the classic horror novel Dracula (1897).

C.S. Lewis was a prolific Irish writer and scholar best known for his 'Chronicles of Narnia' fantasy series and his pro-Christian texts.

Bob Geldof is best known as the singer of the band the Boomtown Rats and for his political activism, particularly his anti-poverty efforts in Africa.

Prolific novelist Iris Murdoch won a Booker Prize for The Sea, the Sea. In 2001, she was portrayed by Kate Winslet and Judy Dench in the biographical film Iris.

James Joyce was an Irish, modernist writer who wrote in a ground-breaking style that was known both for its complexity and explicit content.

U2 frontman Bono told ‘Rolling Stone’ the inspiration for his most recent album came from a near-death experience, offering no further details. He also criticized current music and said hip-hop is “the only place for young male anger at the moment.”

Author Oscar Wilde was known for his acclaimed works including The Picture of Dorian Gray and The Importance of Being Earnest, as well as his brilliant wit, flamboyant style and infamous imprisonment for homosexuality.

Mary Harris Jones (aka "Mother Jones") was a union activist. She founded the Social Democratic Party, and helped establish the Industrial Workers of the World.

William Butler Yeats was one of the greatest English-language poets of the 20th century and received the Nobel Prize for Literature in 1923.

John Hume was leader of the Social Democratic and Labour Party (SDLP) in Northern Ireland. He and David Trimble were jointly awarded the Nobel Prize for Peace in 1998.

Actor and producer Gabriel Byrne has been a part of many successful films, including 'Miller's Crossing,' 'The Usual Suspects' and 'In the Name of the Father.'

Maureen O'Hara was an Irish-born actress who was billed alongside Hollywood's leading men in a slew of swashbuckling features in the 1940s.

20th century Irish novelist, playwright and poet Samuel Beckett penned the play Waiting for Godot. In 1969, he was awarded the Nobel Prize for Literature.

Irish golfer Darren Clarke overcame personal tragedy to win the 2011 Open Championship.

Irish golfer Padraig Harrington won two British Open championships and the 2008 PGA Championship.

With her signature shaved head, Sinead O'Connor emerged in the '90s with a powerful voice and a big hit, 'Nothing Compares 2 U,' along with a fair share of controversy.

Jonathan Swift was an Irish author and satirist. Best known for writing Gulliver's Travels, he was dean of St. Patrick's Cathedral in Dublin.

Thomas Andrews was the principal architect for the infamous RMS Titanic. He died in the sinking, on April 15, 1912.

Sir Ernest Henry Shackleton was an Irish-born British explorer who was a principal figure of the period known as the Heroic Age of Antarctic Exploration.

Irish actor Colin Farrell's gained stardom with his part in the movie Tigerland, which lead to his leading roles in numerous films, including American Outlaws.